Defining a function in Origin for fitting a curve

This video will demonstrates how to build a function in origin for fitting a curve . Here, the function is defined using origin function builder.

[@DrRahulSingh-uc6xo]

In the curve fitting, how is it possible the R-square value is 1.

[@monalisamallick9426]

Good

[@karimchourti]

bonsoir
comment faire cette methode par origin 8 merci